A simple to install high score save kit that
permanently remembers the top 6 scores and initials for Zaxxon. No
batteries required. Plus extras features such as deluxe Free
play, powerup Selftest, and on-screen Settings.
Installs in minutes! No special wiring or soldering is typically
required. Simply remove the Z80 chip from your Zaxxon CPU board,
insert this Z80 CPU chip into the daughter card (pictured right) and
then plug the daughter card into the vacated Z80 socket on the CPU
board. Thats it! See detailed installation
instructions.